Internal-combustion engine



June 9, 3925.

J. A. H. BARKEU I NTERNAL COMBUSTION ENGI NE Filed Dec.

Inventor J'ean All. Barizm'],

4 ztorrbey.

Patented June .9, 1925. I

JEAN A. H. BARKER, OF LOS ANGELES, CALIFORNIA.

INTERNAL-COMBUSTION ENGINE.

Application filed December 5, 1923. Serial No. 678,624.

To all whom it may concern:

Be it known that l. JFAN A. H. BARKI'ILL a subject of Holland. residing at Los AngeIes, in the county of Los .ingcles and State of California, have invented a new an}; usetul lnternal-(on'ilnistion llngine. of which a specification set. forth below.

In this specification, and the accompanying drawing. 1 shall describe and show a preferred form ot my invention. and speciti-. cally mention certain of its more important objects. I do not limit myself to the forms disclosed, since various changes and adapt ations may be made therein Without departing from the essence of my invention as hereinafter claimed: and objects and advantages. other than those specifically mentioned. are included within its scope.

My invention relates to internal combustion engines of the two cycle type. Among its principal objects are; first. to do away with the necessity for crank case compression, hithert. used practically universally in engines of this type, and thus avoid accumulation of crank case lubricants in the combustion chambers; second. to atl'ord it'acilities tor scavenging by the use of compressed air prior to the introduction of the explosive mixture. thin: securing better fuel economy and cleaner operation; third. to balance in a large measure the inertia forces exerted by the reciprocating masses. so as to effectively reduce vibration and permit higher operating speeds: and tourth. to accomplish the above objects in a relative];' simple construction adapted for delivering a large amount of power in proportion to its dimensions and weight.

My objects are attained in the manner illustrated in the acconipanying drawing. in which- Figure l is a central longitudinal section. in elevation, ot a twocvlinder engine of my improved construction; and

and 4 are reduced scale cr ss igures 2, sections. in plan. taken on the l.ine.-- 1 33. and r--i oi" l ig. respectively.

Similar reference numerals rcter to simi- 'lar parts throughout.tl e several vicv. r

"elation Referring to the drawing it will be noted that each of the power cylinders 5 is provided with a Water jacket 6 extending throughout the whole of its power producing length. wherein the combustible gases are burned. It will also be seen that each of these cylinders is provided witha relatively large diameter, but axially short counterbore I at its top. The upper ends of the cylinders are closed by peculiarly shaped. douhleeupped. heads 8. ne of these is shown broken in Fig. l. at 9. to better illustnate certain features that would otherwise be concealed in this View.

"Within the counter-bore ot each cylinder there is a large compression piston 10 adapted to reciprm ate. thereinv These pistons have tubular trunlrs ll alaptcd to work Within bore 5 of the power cylinders. and projecting therctrom at their lower ends. The trunks are conne ted in each case to crank shaft 12 of the engine by a. pa r ot connecting rods 13, attached in any suitable manner as by the internal collars 1 t. and diametrically opposed wrist, pins 15.

Trunks ii are interiorly divided by intermediate transversc partitions 16. serving as reaction heads torthe power pistons 17 and. at the same time. as secondary piston'means whet-ch a portion of the power of the exploded gases is delivered to the crank shaft through connecting rods 13"). For convenience of inspection and cleaning. I prefer to provide the transverse partitions witli.-re movable plates 18.. whereby access is had to the space below them. Power pistons 17 are cormected to the crank shaft. of the engine by (ohm-cling rods 19 in the usual manner.

llach cubular trunk 11 has a pair of longitudinallv aligned ports 20. adapted to register with the respective ends f a passage 21. in the cylinder casting. This permits of establishing communication between the spaces on the two sides of partitions 16 when the various parts are in the operating positions shown in the. left half of Fig. 1.

At this time also a port in the op osite wall of the trunk. in registry Wit the oath-t oassa e 93, leading from the space below lzi'rgfi' of the engine.

It is to be noted that the centrai cupshaped portions of cylinder heads 8- do not closely tit the bores ei' trunks 11. There is in fact a considerable annular space 24: separating't-hese parts, so that gas compressed we ston 10 of the other cylinder beta T1611 ui i/012s 16 @1165 their respauiive 0y mder 3102x619: can flaw a "f t rough this annular space 'zpn'to there, into space 26 t age 12]..

-1Tn1ai; parts 2? in the walls '2" allow of inr-l-mlmi of QOiHltfiIbOzQS expiesive mixture enmbustible mic the SDQCES above 1 10 fax: comprw ion therein. The apex edges of these pistons serve to close pen these pit-111s the proper mnment he @pmting syclev Similar inlet parts :8, in. the GpPOSfi- Wa e; of the wunie bores mm there! A permit of i 1 spmpmsmon iwemath 1n maven" \l is zmfv, :nienfiy be armingun for 1203, T 532301255, by means 0'? At- 5119 laws? 0f trurm Ft 12 comlecu'ing rods. (5x111 ssive mix'xn'e, spam album pishuwinz and a he (in-mm hm) (be space im; (01111 2122 96 upon its Mirna he mmgm dmlfim 214m .1

Inn" in let suds of ()XDIOSEYQ mire mm above pisaon pm'i's and downzzrtition l6. 21ft wi'i'i 1% suit in vominuous progressive compression z-man'e 2G and 4; its on Man of tha 60:15.1 am-s. *f'lll'ti It is aisn in h mfivd changes in propmi iions 0% parts and of ei-2s the 115%- of the S m: beimv pistmxs :10 may be ro er.

{5&2/"H2Q incoming: explosive 5311312? may be 1211621 37 comgn'essmz 'mlow pzsmns ML in sand of above them. urovided a coz'r'csp-nu-ad- 511g; change is: made in manner n wmrsing Hm afmnging; air.

it 'Wiii be obvious that my wzlsiruviims and :111'21'i1;;=1n@11t pmitzs pa mi effietiezii', waiur-jackeiing: hum 1011i; tin? *fn (0211111156921 length M the )0 I (:ylindm-ru. A350 that 11m efiects of i srzia in 110 1'0- vi n'ocuting pzni's are 3 geiy balanced agsia'asi, each otiutr. The a: aw, b15495; u't'hu'uml t0 trunlm 1 shorter have dun the li hte. a. nth-2.01mi pismns 17 in an pwportien 0 the; we than tendencies: are thus hugely eiiw' and. the pewnwsibkz 5p m? the gm-rims is nlsi'i'veiy high. This. ium. z'vsz'zlts in gr-mt'm' power per unit: u'f \x'uigghi'. mu! m dimes the Casi p01 uni? 0'? out 1 iinz'ilimn above and i Thai is mm: 1 mud heavier 11. w: 2

i ht:

In an zapplicn on for Lettmw &

an internal Combustion 011;; 1

531, 192i, Sena? Nun'zber -23 Nu power fm' rmipnxrating oppmtiteh the x 0: mid

hunks and said puwe'i? pleat: Us imin upwatiwiy mnneuted to :1 mm .m "yank smzi fi'.

prising cohnterbored cylinders; compression pistons within said counterbores having transversely partitioned tubular trunks within said cylinders; and power pistons within said trunks adapted for reciprocating oppositely thereto; said trunks and said power pistons being operatively connected to a common cran shaft.

3. An internal combustion engine comprising, counterlmred cylinders: compression pistons within said countcrbores having tubular trunks, with removable transverse partitions therein. within said cylinders; and power pistons within said trunks adapted for reciprocating oppositely thereto.

4. An internal comliustion engine conimising counterbored cylinders; conun'cssion pistons within said counter-bores having tnbular trunks within said cylinders; and power pistons within said trunks: said power pistons and trunks of each cylinder being operatively connected to a (OllllllOll crank shaft for opposite reciprocati m.

5. An internal combustion eu :i ine conh prising counter-bored cylinders: comp ession pistons within said counterbores having transversely partitioned tubular trunks within said cylinders; .and power pistons within said trunks said power pistoz'is and trunks of each cylinder being OIKHtlliYfltl) connected to a common crank shaft for opposite reciprocation and delivering power thereto.

6. An internal combustion engine conn prising counterborcd C Vlll1(l0l':-.2 compression pistons within said counierliiores having transversely partitioned tubular trunks within said cylinders: and power pistmm within said trunks: mid power pistons and trunks of each cylinder being operallvciv connected to a common rank shaft for opposite reciprocation with throws in approximately inverse proportion to the square roots of the respective masses of the reciprocating parts.

7. An internal combustion engine comprising; an adjacent pair of counter-bored cylinders; compression pistons within the connterbores, having tubular trunks within the respective cylinders; power pistons within the trunks; and means for intermittently connecting one side of each compression piston to the inner end of its trunk, and i the other side to the inner end of the adjaccnt trunk: said trunks and the respective power pistons being adapted for recipmcating oppositely.

8. An internal combustion engine comprising; an adjacent pair of counterbored cylirnlersi com 'iression pistons within the counterbores, having tubular trunks within the respective cylinders; power pistons within the trunlrs; and means for intermittently connecting one side of each compression piston to the inner end of its trunk and the other side to the inner end of the adjacent trunk; said trunks and the respective power pistons being opcratwely connected to a common crank shaft for re adjacent trunk; said trunks and the respective power pistons being operatiyely connected to a common crank shaft for reciprocatmg opposltely;- and said means being operative by t l'IG mOQJTLGHt of the pistons.

10. An internal combustion engine cone prisipg; an adjacent pair of counterbored cylinders; compression pistons within the counterhores. having tubular trunks within the remective cylinders; power pistons within t etrunks; and means for intermittently connecting one side of each compres sion )iston to t e inner end of its trunk v ind the other side to. the inner end of. the adjacent, trunk: said trunks and the respective power pistons being operatively connected to a. common crank shaft for reciprocating oppositely; and said means new sisting of passages having ports uncoverahle by the movement of the pistons. v

11. An internal combustion engine comprising counterbored cylinders: compression pistons within said counterhores having tubular trunks within said cylinders" power pistons within said trunks adapte 1 for reciprocating oppositely thereto; a passage connecting each cylinder with one end of its counterhore: a passage similarly oonnet-ting with the opposite end of the other counterbore; an exhaust port in eachcylindex; and ports in said trunks adapted to register with said cylinder passages and! ports.

12. An internal combustion engine comprising counterbored cylinders; compression pistons within said counterbores haying tubular trunks within said cylinders; power pistons within said trunks adapted for reciprocating oppositely thereto; a pa m sage connecting each'cylinder with one end of its counterbore: a passage similany connecting with thg opposite end of the other eounterhore: an xhaust, port in each eylinder: ports in said trunks adapted to register with said cylinder passages and ports; and means operativelv connecting the crank shaft of said engine with said power pistons and trunks.

13. An internal con'ibustion engine comprising connterbored cylinders: compression pistons within said counterbores having tulmhu trunks witfnm said c x'iindez's'; pdwm: pistons within. said trunks mhpteia. for reciprocating; rwpusiteiy ihfiz'cto; :1 p215 sage connecting ezufiz cylizzzlm wiflx 0m? and Hilts munterhomr; & passage, simiizul x' @011 meeting with 151m opposite end iii the other cduntm'borc: an tximu'r't 90.0; in each cyiinc101; ports in said trunks adapne to ier wifla. said cyiindar passages and parts; air and. gas inlet ports In said wuniorhozes adapted to be closed and Opened by the movmnmit of said. compmssim: pismns: and means operfiiwly ccnnccting ihe u nk shaft 05 suicl arixgine with saifi powm' pisiens and; Hunks,

JEAN A. BAEYWZJ'. 

